She must have a lot of trouble changing clothes. Unless she can somehow make her eye veins phase through clothing or something.

Baneslave said:
I was about say that eye and its veins are most likely accessories, but then I noticed one glaring flaw on that idea: Why would you wear such accessories in bed?

Hey, I was idiot and posted this. Then I read the page, which contradicted this.

there still one more for koishi, but well....